Biochar Evaporative Cooler

The Biochar Evaporative Cooler is a non-electrical cooler that uses wind and evaporation to cool the interior of the box. Water is absorbed by Biochar (installed in the walls of the cooler) before it is evaporated by wind passing through it. Biochar is a material not too different than charcoal; however, it is made at a lower temperature and is pure carbon. This makes it much more environmentally friendly and actually carbon positive. It is also very accessible and can be made out many organic materials. This makes Biochar a prime candidate for it to be used in agrarian areas without access to electricity. The Biochar in the cooler is able to maintain temperatures significantly cooler than the outside giving it real world applications. At the exhibit there will be a working prototype of the cooler that the visitor will be able to see the cooling effect. This will be done through a thermocouple that shows the temperature difference. Additionally, the exhibit will have different types of biochar samples available for the visitor to touch and interact with. There will also be some kind of evaporative cooling demonstration. The current plan will be to have rubbing alcohol or water to put on visitors hands to see the evaporative cooling effect. Finally, there will be a poster that explains the cooler and different tests that were conducted on biochar and on the cooler itself.